CVE-2026-45289 — CloudburstMC Protocol: Partially missing validation for FULL type authentication tokens
CloudburstMC Protocol is a protocol library for Minecraft Bedrock Edition. Prior to version 3.0.0.Beta12-20260420.182526-15, CloudburstMC Protocol is partially missing validatio…
Published: 2026-06-02 · CVSS: 5.3 · CVSS 3.1
CloudburstMC Protocol is a protocol library for Minecraft Bedrock Edition. Prior to version 3.0.0.Beta12-20260420.182526-15, CloudburstMC Protocol is partially missing validation for FULL type authentication tokens (Cloudburst/Protocol). This vulnerability impacts publicly accessible software depending on the affected versions of Protocol, specifically the EncryptionUtils methods to validate auth payloads for FULL type tokens. This issue has been patched in version 3.0.0.Beta12-20260420.182526-15.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7